davis was actually paul warren pardus, age 50 of arlington, virginia. they say he pulled a semiautomatic pistol from his pants and shot the physician in the stomach. >> the doctor collapsed just outside the doorway of the room and mr. davis was last seen running into the room brandishing the handgun in the direction of his mother who's confined to the bed. >> reporter: fox news and the baltimore sun are identifying the wounded physician as david cohen, an orthopedic surgeon. >> he was talking, everything like that and i mean he appears to be fine to me. >> reporter: meantime nobody knew for certain what was happening inside room 873. >> my boss came running in and he told me exactly what happened, that there was a guy running around with agun and to stay put. >> reporter: around 1:30 police discovered davis and his mother jean dead of gunshot wounds. investigators calling it a murder suicide. william woodson's wife recovering from surgery one floor above. >> she was in her room and there was ruckus on the floor -- and there was no ruckus on the floor or